The Lake Sammamish Half Marathon, presented by REI, takes runners along the smooth trail that connects Marymoor Park in Redmond to Lake Sammamish State Park in Issaquah. This interurban trail is very popular with runners; about 30% of the course will be on smooth gravel surface and 70% on pavement. There is a generous 4 hour time limit for all participants. This flat run is perfect for a half-marathon personal best whether you’re running or walking!

Use the code REI2024 for a 15% discount on registration! CLICK HERE TO REGISTER